title: The influence of patient's motivation on reported pain during orthodontic treatment.
abstract: BACKGROUND
  Patients usually experience pain during orthodontic treatment. This fact can affect cooperation and the development of treatment. Reporting pain during treatment seems to be influenced by emotional aspects such as the patient's motivation.
  
  
  OBJECTIVE
  To assess the relationship between patient's motivation and the intensity of reported pain during two stages of treatment.
  
  
  METHODS
  Twenty males (11-37 years old) answered a questionnaire divided into five categories regarding their motivation towards treatment. The subjects were studied for 14 days (7 days with bonded brackets and 7 days with the initial arch inserted) and the intensity of pain was evaluated on a daily basis. All the issues, including the intensity of pain, were measured through the visual analog scale (VAS).
  
  
  RESULTS
  The VAS-associated questionnaire proved to have good temporal reliability and reasonable internal consistency, being that the "perceived severity" domain had the greatest, although not significant (p = 0.196) correlation with pain intensity. Only the question asking the patients if they thought that their teeth were too uneven showed a positive correlation with pain intensity (p = 0.048).
  
  
  CONCLUSIONS
  The results seem to indicate that the five categories related to treatment motivation cannot be used to predict discomfort during treatment. In addition, patients who think their teeth are too uneven may experience more severe pain due to greater force application after insertion of the initial arch.
authors.forename: Marcio José da Silva
authors.initials: MJ
authors.lastname: Campos
authors.forename: Robert Willer Farinazzo
authors.initials: RW
authors.lastname: Vitral
mesh_terms: D000293:Adolescent; D000328:Adult; D000704:Analysis of Variance; D002648:Child; D003799:Dental Stress Analysis; D005157:Facial Pain / Q000209:etiology* / Q000523:psychology*; D006801:Humans; D008297:Male; D009042:Motivation; D009967:Orthodontic Appliances / Q000009:adverse effects*; D009971:Orthodontics, Corrective / Q000009:adverse effects / Q000295:instrumentation / Q000523:psychology*; D010147:Pain Measurement; D058748:Pain Perception; D018709:Statistics, Nonparametric; D011795:Surveys and Questionnaires; D064232:Visual Analog Scale; D055815:Young Adult
keywords: Motivation; Orthodontics; Pain